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FIRST QUARTER REVIEW 6

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

Which of the following is a heterogeneous mixture?

a)

BRASS

b)

SAND AND WATER

c)

MILO

d)

VANILLA ICE CREAM

2.

What type of mixture would coffee be?

a)

HOMOGENEOUS

b)

HETEROGENEOUS

c)

SUSPENSION

d)

COLLOID

3.

Which of the following methods will form a lotion?

a)

Mix water and oil then heat

b)

Mix water and oil and stir vigorously.

c)

Mix water and oil, with the aid of emulsifiers and stir vigorously.

d)

Mix water and oil then set it aside.

4.

It is a substance that dissolves the solute

a)

SOLUTE

b)

SOLVENT

c)

SOLUTION

d)

SUSPENSION

5.

If a spoonful of sugar is mixed in a glass of water, what is the water called?

a)

SOLUTE

b)

SOLVENT

c)

SOLUTION

d)

SUSPENSION

6.

What type of mixture is chicken noodle soup?

a)

HOMOGENEOUS

b)

HETEROGENEOUS

c)

SUSPENSION

d)

COLLOID

7.

What type of mixture would fruit salad be?

a)

HOMOGENEOUS

b)

HETEROGENEOUS

c)

SUSPENSION

d)

COLLOID

8.

What are the ways to increase the rate of dissolving of a solid solute in preparing a solid-liquid solution?

a)

STIRRING

b)

FREEZING

c)

COOLING

d)

APPLYING PRESSURE

9.

Refers to the amount of solute dissolved in a particular amount of solvent.

a)

SOLUTE

b)

SOLUTION

c)

SOLUBILITY

d)

CONCENTRATION

10.

Molasses are by-products in sugar refinery. What is the best method to purify molasses?

a)

SEDIMENTATION

b)

RECYRSTALLIZATION

c)

EVAPORATION

d)

CENTRIFUGATION

11.

In chromatography, what property of matter is highly considered to separate components of a mixture?

a)

CONCENTRATION

b)

MELTING POINT

c)

SOLUTION

d)

SOLUBILITY

12.

Which method is used to separate rice grains from husks?

a)

USING MAGNETS

b)

MANUAL PICKING

c)

WINNOWING

d)

USING SIEVE

13.

Which of the following method requires a layer of holes that allow only certain sizes of particles to pass?

a)

USING MAGNETS

b)

MANUAL PICKING

c)

WINNOWING

d)

USING SIEVE

14.

What is the first step to purify the water in the chalk-water mixture?

a)

FILTRATION

b)

MANUAL PICKING

c)

WINNOWING

d)

USING SIEVE

15.

There are many kinds of metals for recycling in a junk shop. What is the best method to use to separate scrap metals from other recyclables?

a)

USING MAGNETS

b)

MANUAL PICKING

c)

WINNOWING

d)

USING SIEVE

16.

What is the best method to apply in separating the components of a heterogeneous liquid mixture?

a)

USING A STATIONARY PHASE

b)

USING A SEPARATION FUNNEL

c)

USING A FILTER PAPER

d)

USING A DISTILLING FLASK

17.

purifying sugar from sugar cane.

a)

RECRYSTALLIZATION

b)

DISTILLATION

c)

USING OF MAGNETS

d)

CENTRIFUGATION

18.

separating kerosene and gasoline from fossil fuels.

a)

RECRYSTALLIZATION

b)

DISTILLATION

c)

USING OF MAGNETS

d)

CENTRIFUGATION

19.

separating different components of cells

a)

RECRYSTALLIZATION

b)

DISTILLATION

c)

USING OF MAGNETS

d)

CENTRIFUGATION

20.

purification of drugs.

a)

RECRYSTALLIZATION

b)

DISTILLATION

c)

USING OF MAGNETS

d)

CENTRIFUGATION

21.

Emulsifiers help in separating the components of a colloid.

a)

TRUE

b)

FALSE

22.

Crushing helps in preparing liquid-liquid mixtures.

a)

TRUE

b)

FALSE

23.

A refinery is an industrial site used to refine oil, alcohol and other substances.

a)

TRUE

b)

FALSE

24.

Distillation is the separation technique common for a refinery

a)

TRUE

b)

FALSE

25.

Wastewater industry uses evaporation for purification treatment.

a)

TRUE

b)

FALSE